Heat intensifier



Feb, 23 1926. 1,574,525

L. T. WILCOX 1 HEAT INTENSIFIER Filed July 15 1922 Patented Feb. 23, 1926.

PATENT OFFICE.

LEWIS WILCOX, 0F PEEKSKILL, NEW YORK.

HEAT inrnnsrrinn.

Application filed July 15, 1922. Serial No. 575,175.

To all whom it may concern:

Be it known that I, LEWIS T. WILCOX, a citizen of the United States, residing at Peekskill, in the county of Westchester and State of New York, have invented an Im-' provement in Heat lntensifiers of which the following is a specification.

This invention relates to a heat intensifier or an attachment for gas, oil and other stoves which is constructed to direct the flame from the burner and to act in conjunction with a vessel on the stove to provide a chamber or pocket for retaining to a certain extent the heated products of combustion in order to apply the same directly to the vessel on the stove and to prevent drafts of cold or relatively cool air from coming into contact with the said vessel whereby, as will be understood, the apparatus has the effect of intensifying the heat from the flame of the burner. The apparatus is also preferably so constructed as to receive and contain any of the contents of the Vessel on the stove which may boil over and would otherwise come into contact with the flame and be scorched or burned creating either considerable smoke and unnecessary odors or both whereby the device is also made to function as a sanitary apparatus.

In carrying out the invention the apparatus made in accordance therewith is preferably stamped out of sheet metal or other similar material and may be annular or of any other configuration. It is also so constructed as to fit-the opening in the stove and to receive and support a suitable grate. The wall of the intensifier is so constructed as to include'an internal flange through the openin in which the flame or heated air from t e burner passes so that the heated products of combustion may be retained to a predetermined extent between the bottom of the vessel on the stove and the walls of the heat intensifier for the purposes hereinbefore indicated. The ap aratus made in accordance with my invention will be hereinafter more particularly described in conjunction with the accompanying drawings in which, 7

Fig. 1 is a transverse section illustrating the improved heat intensifier.

Fig. 2 is a view similar to Fig. 1 showing a modification thereof.

Fig. 3 is a section showing still another form of the invention, and

, Fig. 4 is a View similar to Fig. 3 showing a different form of the annular member of the heat intensifier. F

Referring to the drawing, and particularly to Figs. 1 and 2, it will be seen that the heat intensifier made in accordance with this invention comprises an annular body member A having a peripheral flange a in which, as indicated in Fig. 2, there is an angular shoulder 22 adapted to fit an opening in the wall of the top of a gas or oil stove so that the angular shoulder b or a portion thereof .bears against the internal flange e of the top of the stove. The annular body member A is provided centrally with an opening A by means of an internal flange a, the walls of which preferably curve inwardly. In this structure the bottom wall of the annular member is inclined upwardly and the side walls (1 are inclined inwardly and curved at the lower portions thereof. In the drawingv I have illustrated a grate or support B fitting within the upper portion of the body member'A and adapted to support a frying pan or other vessel above the apparatus. In the drawing C diagrammatically represents the burner of a stove, the flame from which, as will now be understood, passes upwardly through the opening A and the heated products of combustion, are contained to a certain extent within the chamber enclosed by the heat intensifier and the bottom of the vessel on the stove. It will also be apparent that any of the contents of the vessel which may boil over or otherwise overflow from the vessel will run down the sides thereof and be caught in the bottom of the intensifier so that it cannot possibly reach the flame of the burner Without overflowing the flange a.

In this structure the bottom wall of th annular body member is inclined .upwardly so as to leave a circular pocket at the outer.

portion of the annular member within that portion of the wall indicated at a. This not only causes the greater portion of'the heated gases to flow to the outer edge of the intensifier, but also prevents any material which may overflow from the vessel on the stove from passing to a position in which' it can come in contact with the flame or the internal flange a which obviously is the hottest portion of the heat intensifier. In Fig. 2 the peripheral flange a" of the annular body member A is provided with an annular shoulder 6 within which the ends of the grate bars fit.

In the form of the invention shown in Fig. 3 the construction is similar to that shown in Fig. 2 with the exception that there is a groove formed in the top of the stove for the reception of the peripheral flange a of the annular body member A and immediately below the angular shoulder b of the annular body member I may employ a series of apertures a therein for the escape of the heated products of combustion, this being advisable in this construction inasmuch as the vessel over the burner in this instance is permitted to rest immediately upon the top of the stove.

In Fig. 4 the construction is similar to that shown in Figs. 2 and 3 in so far as the angular flange 6 is concerned, and also inso far as the apertures a for the escape of the heated products of combustion are concerned. In this structure, however, the walls of the annular body member are,radically different from those of any of the structures illustrated in the other figures. The side wall F is in this instance made at a relatively small angle and the internal flange a is turned up directly therefrom so as to provide a relatively deep circular recess 0 forming acorrespondingly shaped chamber for the retention'of the heated gases or other products of combustion and to receive any part of the material which may overflow from the vessel on the stove. I I

I claim as my invention:

1. A heat intensifier for gas and oil stoves comprising a body member having a peripheral support, an inwardly and downwardly inclined oute'rside wall depending from the said peripheral support, and a bottom wall which in its entirety is upwardly inclined toward the center of the intensifier and. terminates in an upwardly curved internal flange for directing the flame from a burner into the intensifier thereby providing a chamber for heated gases and also a receptacle forthe drippings or overflow from a vessel placed above the intensifier.

2. A heat intensifier for gas and oil stoves comprising a body member having a peripheral flange by which the intensifier is supported upon the top of a gas stove, an in wardly inclined side wall depending from the said peripheral flange, and a bottom wall which in its entirety is upwardly inclined to Ward the center ofthe intensifier and terminates in an annular internal flange for (11- recting the flame from a burner into the said intensifier thereby providing a chamber for heated gases and also a receptacle for the, drippings or overflow from a vessel placed above the intensifier, there'being a series of holes in the side wall immediately below the said peripheral flange.

I Signed by me this. 6th day of July 1922.

LEWIS T. W'ILGOX. 

